A control allocation method for flying wing aircraft with control effector interactions considered

For flying wing aircraft with large ratio, split-rudder is used for pitch and drag control; this leads to the occurrence of control effector interactions between the split-rudder and adjacent control surface. As the nonlinear characteristics of interaction moment is prominent, control allocation methods based on linear model produce a certain error. Sequential linear programming can solve the problem of considering the control interactions, but its performance highly relies on the mathematical form of interaction moment and the solving process requiring multiple linear programming may lead to a poor real-time performance. In this paper, a method based on compensation and linear programming is given. This method needs a greater control input, but real-time performance is significantly better than Sequential linear programming, and the mathematical form of interaction moment is relaxed.